APA (7th ed.) Citation

Gregersen, H., Elz, D., & Draper, S. (1989). People and trees: The role of social forestry in sustainable development. World Bank.

Chicago Style (17th ed.) Citation

Gregersen, Hans, Dieter Elz, and Sydney Draper. People and Trees: The Role of Social Forestry in Sustainable Development. Washington, D.C.: World Bank, 1989.

MLA (9th ed.) Citation

Gregersen, Hans, et al. People and Trees: The Role of Social Forestry in Sustainable Development. World Bank, 1989.